Physics, 21.02.2020 18:35, kamo90

Consider the normal modes of a linear chain in which the force constants between nearest-neighbor atoms are alternately C and 10C. Let the masses be equal, and let the nearest-neighbor separation be a/2. Find (K) at K 0 and K /a. Sketch in the dispersion relation by eye. This problem simu- lates a crystal of diatomic molecules such as H2.

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Consider the normal modes of a linear chain in which the force constants between nearest-neighbor at...